import router from "./router";
import store from "./store";
import { Message } from "element-ui";
import NProgress from "nprogress"; // progress bar
import "nprogress/nprogress.css"; // progress bar style
import { getToken,removeToken } from "@/utils/auth";
import de from "element-ui/src/locale/lang/de"; // getToken from cookie

NProgress.configure({ showSpinner: false }); // NProgress Configuration

// permissiom judge function
function hasPermission (roles, permissionRoles) {
  if (!permissionRoles) return true
  return roles.some(role => permissionRoles.indexOf(role) >= 0)
}

function clearCache () {
  window.localStorage.clear();
  window.sessionStorage.clear();
  //removeToken();
}

// 白名单列表
//const whiteList = [""]; // no redirect whitelist
const whiteList = ['/login', '/auth-redirect', '/bind', '/register']; // no redirect whitelist

router.onError((error) => {
  const pattern = /Loading chunk (\d)+ failed/g;
  const isChunkLoadFailed = error.message.match(pattern);
  const targetPath = router.history.pending.fullPath;
  if (isChunkLoadFailed) {
    router.replace(targetPath);
  }
});

// 路由跳转前判断
router.beforeEach((to, from, next) => {
  ////debugger
  NProgress.start(); // start progress bar
  if (getToken()) {
    // determine if there has token
    /* has token*/
    if (to.path === "/login") {
      // next({ path: '/' })
      window.location.href = "/";
      clearCache();
      NProgress.done(); // if current page is dashboard will not trigger	afterEach hook, so manually handle it
    } else {
      store.commit("setDemoValue", to.path);
      // localStorage.setItem('setDemoValue',to.path)
      // console.log(store.modules.permission.state.routers,'000000000000000000000')
      // 浏览器刷新，会重置store，所以若是在已登录情况下，调整了路由，点击浏览器的刷新，就可以看到新路由
      if (store.getters.roles.length === 0) {
        // 判断当前用户是否已拉取完user_info信息
        store.dispatch("GetUserInfo")
          .then(res => {
            // 拉取user_info
            const roles = res.data.roleIds // note: roles must be a array! such as: ['editor','develop']
            // //debugger
            store.dispatch("GenerateRoutes", { roles }).then(() => {
              // 根据roles权限生成可访问的路由表
              router.addRoutes(store.getters.addRouters); // 动态添加可访问路由表
              next({ ...to, replace: true }); // hack方法 确保addRoutes已完成 ,set the replace: true so the navigation will not leave a history record
            });
          })
          .catch(err => {
            store.dispatch("FedLogOut").then(() => {
              Message.error(err || "Verification failed, please login again");
              next({ path: "/" });
            });
          });
      } else {
        // 没有动态改变权限的需求可直接next() 删除下方权限判断 ↓
        //next();
        if (hasPermission(store.getters.roles, to.meta.roles)) {
          next();
        } else {
          next({ path: "/401", replace: true, query: { noGoBack: true } });
        }
        // 可删 ↑
      }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // 在免登录白名单，直接进入
      next();
    } else {
      next('/login') // 否则全部重定向到登录页
      //window.location.href = "/";
      //clearCache();

      //next(`/login?redirect=${to.fullPath}`) // 否则全部重定向到登录页
      clearCache();
      NProgress.done(); // if current page is login will not trigger afterEach hook, so manually handle it
    }
  }
});

router.afterEach(() => {
  NProgress.done(); // finish progress bar
});
